CVE-2020-7245

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.2%, top 36% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows an attacker to take over an arbitrary account if the username is known and emails are enabled on the CTFd instance. To exploit the vulnerability, one must register with a username identical to the victim's username, but with white space inserted before and/or after the username. This will register the account with the same username as the victim. After initiating a password reset for the new account, CTFd will reset the victim's account password due to the username collision.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
65%
KEV
Not listed

Published

January 23, 2020

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Sep 5, 2026
Patch available. Sources: github_pr, github_release.
github_release Patch Available

2.2.3

Patch available: CTFd/CTFd 2.2.3

https://github.com/CTFd/CTFd/releases/tag/2.2.3
github_pr Patch Available

Strip spaces on registration and refine password reset

Patch available: CTFd/CTFd 3.2.0 (PR #1218 merged 2020-01-20)

https://github.com/CTFd/CTFd/pull/1218

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 141 total refreshes for this CVE.

  1. 2026-09-07 20:21 UTCOSV refresh
  2. 2026-09-07 15:58 UTCEPSS rescore
  3. 2026-09-06 13:44 UTCEPSS rescore
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  1. 2026-08-09 13:43 UTCEPSS rescore
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  5. 2026-08-05 20:51 UTCOSV refresh
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  16. 2026-07-23 01:54 UTCEG score recompute
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  23. 2026-07-19 21:18 UTCOSV refresh
  24. 2026-07-19 14:28 UTCEPSS rescore
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  49. 2026-07-02 16:57 UTCEPSS rescore
  50. 2026-07-02 12:02 UTCOSV refresh
  51. 2026-07-01 15:03 UTCEPSS rescore
  52. 2026-06-30 23:20 UTCEPSS rescore
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  74. 2026-06-17 17:50 UTCEPSS rescore
  75. 2026-06-16 17:50 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-7245?
CVE-2020-7245 is a critical vulnerability published on January 23, 2020. Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows an attacker to take over an arbitrary account if the username is known and emails are enabled on the CTFd instance. To exploit the vulnerability, one must register with a username identical to the victim's…
When was CVE-2020-7245 disclosed?
CVE-2020-7245 was first published in the National Vulnerability Database on January 23, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-7245 actively exploited?
CVE-2020-7245 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 34.7% of all scored CVEs.
What is the CVSS score of CVE-2020-7245?
CVE-2020-7245 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-7245?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-7245, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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